| Title | Durability of self-compacting concrete made with recovery filler from hot-mix asphalt plants |
|---|---|
| ID_Doc | 9079 |
| Authors | Esquinas, AR; Alvarez, JI; Jiménez, JR; Fernández, JM; de Brito, J |
| Title | Durability of self-compacting concrete made with recovery filler from hot-mix asphalt plants |
| Year | 2018 |
| Published | |
| Abstract | In construction, there is a need to respond to environmental challenges and implement the Circular Economy as a strategy for the sustainable growth of the sector. To eliminate the lack of confidence in the application of the waste from this sector, it is necessary to carry out research in order to achieve an effective and integral management, as well as the reuse and recycling of these materials. In this work, a detailed study of Self-Compacting Concrete (SCC) was carried out, using as filler a waste from the drying process of the aggregate used in the manufacture of hot-mix asphalt. The results showed that it is possible to obtain a high-performance SCC in terms of durability by replacing a commercial siliceous filler (SF) with this dolomitic residual powder (RF), with high performance against the attack of aggressive agents (chloride, sulphate and carbonate ions) and shrinkage. In this study the analysis of the physical parameters of the materials (density, open porosity and pore size distribution as obtained from mercury intrusion porosimetry) and water absorption (by immersion and capillarity) was fundamental. The joint analysis of all the studied parameters allowed obtaining exhaustive results about the durability of the mixes and its interrelation with the properties of the constituents. (C) 2017 Elsevier Ltd. All rights reserved. |
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